Which of the following is the correct SI unit for measuring volume?

• A. cubic centimeter (cm^3)
• B. gallon (gal)
• C. liter (L)
• D. cubic meter (m^3)

Answer: (D)

Verified step by step guidance

1. Understand that volume is a measure of the amount of space an object occupies, and it is expressed in cubic units because it involves three dimensions (length, width, and height).
2. Recall that the International System of Units (SI) uses the meter (m) as the base unit for length, so volume in SI units is expressed in cubic meters, written as \(m^3\).
3. Recognize that while units like cubic centimeters (\(cm^3\)) and liters (L) are commonly used for volume, they are derived or non-SI units; for example, 1 liter equals 0.001 cubic meters.
4. Note that the gallon (gal) is a unit of volume used primarily in the US customary system and is not an SI unit.
5. Conclude that the correct SI unit for volume is the cubic meter, \(m^3\), because it directly relates to the SI base unit of length and measures volume in three-dimensional space.